ABSTRACT

The incidence of muscular VSD of 2.7 cases per 1000 live births.1 The expected fate of muscular Ventricular Septal Defects (VSD) is that they decrease in size and finally close. Ventricular myocardium grows and fills the defect therefore small sized VSDs close spontaneously. Itwas reported that 33% of VSD closed in utero, 44% within the first postnatal year, and 23% did not close.2 Large muscular defects if not treated may cause pulmonary hypertension and may affect the growth of children. Surgery can be an option but because of their location it is very hard to find such defects and approach because of coarse trabeculations. Therefore, firstly hybrid approaches, later percutaneous closures are done for treatment. Various devices are used for this purpose, nowadays Amplatzer Duct Occluder (ADO) II are common.